Answer:
A computer virus is a program that can copy itself and infect a computer without the permission or knowledge of the user.
Answer:
destruction
Explanation:
destruction is also the property of information in which unintended users sabotage the information so that it becomes useless for both the owner and the user as well.
Option D is the answer.
Option A is rejected because in centralized communication notwork there is no free flow of communication in all directions ( all direction means between all the groups or layers of the network).
Option B is not the answer because centralized and decentralized networks has nothing to do with the size of organizations.
Option C is rejected because decision making process depends on the hard work and technical skills of groups of an organization about a field but not by the network discipline.
Option D is selected because in centralized network the information or decision making power is primarily limited to the upper level or higher members of organization and as mentioned decentralized decides on the basis of decision of all the groups or levels of the network.
<span>The string is a sequence of characters.</span><span>
Each character in a string has an index which specifies its position in the string.
</span>The index of the first character is 0, the second character is 1, and so on.The character at the nth position has the index n.
